2.2 SERVOPACK Overload Protection Characteristics
2-5
2
S
ER
VOP
ACK Rating
s
and
S
pecification
s
2.2
SERVOPACK Overload Protection Characteristics
The overload detection level is set for hot start conditions with a SERVOPACK surrounding air tem-
perature of 55
°
C.
An overload alarm (A.710 or A.720) will occur if overload operation that exceeds the overload pro-
tection characteristics shown in the following diagram (i.e., operation on the right side of the appli-
cable line) is performed.
The actual overload detection level will be the detection level of the connected SERVOPACK or Ser-
vomotor that has the lower overload protection characteristics.
In most cases, that will be the overload protection characteristics of the Servomotor.
•
SGD7S-R70A, -R90A, -1R6A, -2R8A, -R70F, -R90F, -2R1F, and -2R8F
Note: The above overload protection characteristics do not mean that you can perform continuous duty operation
with an output of 100% or higher.
For a Yaskawa-specified combination of SERVOPACK and Servomotor, maintain the effective torque within
the continuous duty zone of the torque-motor speed characteristic of the Servomotor.
•
SGD7S-3R8A, -5R5A, -7R6A, -120A, -180A, -200A, -330A, -470A, -550A, -590A,
and -780A
Note: The above overload protection characteristics do not mean that you can perform continuous duty operation
with an output of 100% or higher.
For a Yaskawa-specified combination of SERVOPACK and Servomotor, maintain the effective torque within
the continuous duty zone of the torque-motor speed characteristic of the Servomotor.
Detection time (
s
)
S
ERVOPACK output current
(continuou
s
output current ratio) (%)
In
s
tantaneou
s
maximum output current
(In
s
tantaneou
s
maximum output current)
Continuou
s
output current
(Continuou
s
output current)
× 100%
100
2
3
0
10000
1000
100
10
1
100
200
10000
1000
100
10
1
Detection time (
s
)
S
ERVOPACK output current
(continuou
s
output current ratio) (%)
In
s
tantaneou
s
maximum output current
(In
s
tantaneou
s
maximum output current)
Continuou
s
output current
(Continuou
s
output current)
× 100%